/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label49.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 08:07:10,374 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 08:07:10,377 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 08:07:10,414 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 08:07:10,415 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 08:07:10,416 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 08:07:10,418 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 08:07:10,421 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 08:07:10,424 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 08:07:10,425 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 08:07:10,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 08:07:10,429 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 08:07:10,429 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 08:07:10,430 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 08:07:10,432 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 08:07:10,433 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 08:07:10,434 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 08:07:10,435 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 08:07:10,452 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 08:07:10,455 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 08:07:10,456 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 08:07:10,458 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 08:07:10,459 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 08:07:10,460 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 08:07:10,463 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 08:07:10,464 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 08:07:10,464 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 08:07:10,465 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 08:07:10,466 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 08:07:10,467 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 08:07:10,467 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 08:07:10,468 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 08:07:10,469 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 08:07:10,470 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 08:07:10,472 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 08:07:10,472 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 08:07:10,473 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 08:07:10,473 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 08:07:10,474 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 08:07:10,475 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 08:07:10,476 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 08:07:10,477 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-29 08:07:10,502 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 08:07:10,503 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 08:07:10,504 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 08:07:10,504 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 08:07:10,505 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 08:07:10,505 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 08:07:10,505 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 08:07:10,505 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 08:07:10,506 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 08:07:10,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 08:07:10,506 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 08:07:10,506 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 08:07:10,507 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 08:07:10,507 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 08:07:10,507 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 08:07:10,507 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 08:07:10,507 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 08:07:10,508 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 08:07:10,508 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 08:07:10,508 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 08:07:10,509 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 08:07:10,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 08:07:10,509 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 08:07:10,509 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 08:07:10,509 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 08:07:10,510 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 08:07:10,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 08:07:10,510 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 08:07:10,510 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 08:07:10,511 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 08:07:10,846 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 08:07:10,871 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 08:07:10,874 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 08:07:10,875 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 08:07:10,879 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 08:07:10,880 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label49.c [2020-10-29 08:07:10,958 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5dc3399fb/9b1589087b6e495bb6610358419320bb/FLAG197541c18 [2020-10-29 08:07:11,806 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 08:07:11,807 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label49.c [2020-10-29 08:07:11,830 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5dc3399fb/9b1589087b6e495bb6610358419320bb/FLAG197541c18 [2020-10-29 08:07:11,952 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5dc3399fb/9b1589087b6e495bb6610358419320bb [2020-10-29 08:07:11,956 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 08:07:11,966 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 08:07:11,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 08:07:11,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 08:07:11,972 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 08:07:11,973 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 08:07:11" (1/1) ... [2020-10-29 08:07:11,982 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7954a7e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:07:11, skipping insertion in model container [2020-10-29 08:07:11,982 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 08:07:11" (1/1) ... [2020-10-29 08:07:11,992 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 08:07:12,072 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 08:07:12,839 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 08:07:12,855 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 08:07:13,134 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 08:07:13,156 INFO L208 MainTranslator]: Completed translation [2020-10-29 08:07:13,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:07:13 WrapperNode [2020-10-29 08:07:13,156 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 08:07:13,158 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 08:07:13,159 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 08:07:13,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 08:07:13,172 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:07:13" (1/1) ... [2020-10-29 08:07:13,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:07:13" (1/1) ... [2020-10-29 08:07:13,223 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:07:13" (1/1) ... [2020-10-29 08:07:13,223 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:07:13" (1/1) ... [2020-10-29 08:07:13,305 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:07:13" (1/1) ... [2020-10-29 08:07:13,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:07:13" (1/1) ... [2020-10-29 08:07:13,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:07:13" (1/1) ... [2020-10-29 08:07:13,360 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 08:07:13,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 08:07:13,361 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 08:07:13,361 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 08:07:13,362 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:07:13" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 08:07:13,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 08:07:13,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 08:07:13,443 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 08:07:13,443 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 08:07:13,443 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-29 08:07:13,444 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 08:07:13,445 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 08:07:13,446 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-29 08:07:13,446 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 08:07:13,446 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 08:07:13,447 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 08:07:13,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 08:07:13,448 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 08:07:13,448 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 08:07:13,448 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 08:07:13,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 08:07:13,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 08:07:13,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 08:07:13,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 08:07:13,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 08:07:13,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 08:07:15,844 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 08:07:15,845 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 08:07:15,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 08:07:15 BoogieIcfgContainer [2020-10-29 08:07:15,847 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 08:07:15,849 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 08:07:15,849 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 08:07:15,853 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 08:07:15,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 08:07:11" (1/3) ... [2020-10-29 08:07:15,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c37a68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 08:07:15, skipping insertion in model container [2020-10-29 08:07:15,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 08:07:13" (2/3) ... [2020-10-29 08:07:15,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c37a68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 08:07:15, skipping insertion in model container [2020-10-29 08:07:15,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 08:07:15" (3/3) ... [2020-10-29 08:07:15,856 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem16_label49.c [2020-10-29 08:07:15,867 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 08:07:15,873 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 08:07:15,886 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 08:07:15,915 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 08:07:15,916 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 08:07:15,916 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 08:07:15,916 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 08:07:15,916 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 08:07:15,916 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 08:07:15,916 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 08:07:15,917 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 08:07:15,942 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states. [2020-10-29 08:07:15,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-29 08:07:15,952 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:07:15,953 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:07:15,954 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:07:15,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:07:15,960 INFO L82 PathProgramCache]: Analyzing trace with hash -340250524, now seen corresponding path program 1 times [2020-10-29 08:07:15,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:07:15,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1484061793] [2020-10-29 08:07:15,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:07:16,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:16,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:16,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:16,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 08:07:16,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:16,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 576 [2020-10-29 08:07:16,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:16,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:16,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:07:16,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:07:16,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-29 08:07:16,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 08:07:16,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:07:16,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:16,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:16,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:16,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:07:16,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:16,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 08:07:16,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:16,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:16,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:07:16,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:16,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:07:16,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:07:17,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:07:17,019 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1484061793] [2020-10-29 08:07:17,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 08:07:17,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 08:07:17,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959842202] [2020-10-29 08:07:17,027 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 08:07:17,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:07:17,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 08:07:17,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 08:07:17,044 INFO L87 Difference]: Start difference. First operand 413 states. Second operand 4 states. [2020-10-29 08:07:21,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:07:21,560 INFO L93 Difference]: Finished difference Result 1174 states and 2170 transitions. [2020-10-29 08:07:21,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 08:07:21,562 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 67 [2020-10-29 08:07:21,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:07:21,582 INFO L225 Difference]: With dead ends: 1174 [2020-10-29 08:07:21,582 INFO L226 Difference]: Without dead ends: 697 [2020-10-29 08:07:21,595 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 08:07:21,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2020-10-29 08:07:21,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 693. [2020-10-29 08:07:21,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 693 states. [2020-10-29 08:07:21,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1015 transitions. [2020-10-29 08:07:21,697 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1015 transitions. Word has length 67 [2020-10-29 08:07:21,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:07:21,698 INFO L481 AbstractCegarLoop]: Abstraction has 693 states and 1015 transitions. [2020-10-29 08:07:21,698 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 08:07:21,698 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1015 transitions. [2020-10-29 08:07:21,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-29 08:07:21,706 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:07:21,706 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:07:21,707 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 08:07:21,707 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:07:21,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:07:21,708 INFO L82 PathProgramCache]: Analyzing trace with hash -1540042715, now seen corresponding path program 1 times [2020-10-29 08:07:21,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:07:21,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1953784666] [2020-10-29 08:07:21,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:07:21,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:21,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:22,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:22,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:23,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:23,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-29 08:07:23,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:07:23,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1383 [2020-10-29 08:07:23,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:23,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:23,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:07:23,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-29 08:07:23,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-29 08:07:23,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 08:07:23,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:07:23,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:23,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:23,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:23,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:07:23,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:23,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 08:07:23,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:23,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:23,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:23,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:23,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:23,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:23,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:07:23,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:23,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:23,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:23,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-29 08:07:23,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:23,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-29 08:07:23,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:23,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:23,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:07:23,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:23,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-29 08:07:23,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:07:23,520 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 58 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 08:07:23,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1953784666] [2020-10-29 08:07:23,521 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:07:23,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 08:07:23,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424316063] [2020-10-29 08:07:23,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 08:07:23,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:07:23,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 08:07:23,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 08:07:23,530 INFO L87 Difference]: Start difference. First operand 693 states and 1015 transitions. Second operand 5 states. [2020-10-29 08:07:27,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:07:27,726 INFO L93 Difference]: Finished difference Result 2065 states and 3058 transitions. [2020-10-29 08:07:27,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 08:07:27,734 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2020-10-29 08:07:27,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:07:27,744 INFO L225 Difference]: With dead ends: 2065 [2020-10-29 08:07:27,744 INFO L226 Difference]: Without dead ends: 1378 [2020-10-29 08:07:27,747 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 08:07:27,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1378 states. [2020-10-29 08:07:27,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1378 to 1374. [2020-10-29 08:07:27,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1374 states. [2020-10-29 08:07:27,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1374 states to 1374 states and 1806 transitions. [2020-10-29 08:07:27,830 INFO L78 Accepts]: Start accepts. Automaton has 1374 states and 1806 transitions. Word has length 143 [2020-10-29 08:07:27,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:07:27,833 INFO L481 AbstractCegarLoop]: Abstraction has 1374 states and 1806 transitions. [2020-10-29 08:07:27,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 08:07:27,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1374 states and 1806 transitions. [2020-10-29 08:07:27,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-10-29 08:07:27,848 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:07:27,849 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:07:27,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 08:07:27,849 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:07:27,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:07:27,851 INFO L82 PathProgramCache]: Analyzing trace with hash -91938922, now seen corresponding path program 1 times [2020-10-29 08:07:27,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:07:27,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1500541322] [2020-10-29 08:07:27,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:07:27,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:27,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:28,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:28,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:29,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:29,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:31,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:31,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:32,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:32,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 08:07:32,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-29 08:07:32,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-29 08:07:32,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:32,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:32,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 08:07:32,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:07:32,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 171 [2020-10-29 08:07:32,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:33,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:07:33,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:33,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:33,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:33,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:07:33,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:33,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 08:07:33,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:33,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:33,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:07:33,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:33,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:07:33,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:33,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:07:33,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:33,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:33,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:33,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:33,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-29 08:07:33,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:07:33,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-29 08:07:33,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:33,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:33,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:07:33,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:33,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 08:07:33,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:07:33,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 08:07:33,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:33,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:33,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:33,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:07:33,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:33,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-29 08:07:33,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:33,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:33,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:07:33,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:07:33,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-29 08:07:33,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:33,596 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 184 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-29 08:07:33,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1500541322] [2020-10-29 08:07:33,596 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:07:33,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:07:33,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233910090] [2020-10-29 08:07:33,599 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:07:33,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:07:33,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:07:33,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:07:33,605 INFO L87 Difference]: Start difference. First operand 1374 states and 1806 transitions. Second operand 7 states. [2020-10-29 08:07:38,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:07:38,709 INFO L93 Difference]: Finished difference Result 3459 states and 4728 transitions. [2020-10-29 08:07:38,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:07:38,710 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 230 [2020-10-29 08:07:38,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:07:38,723 INFO L225 Difference]: With dead ends: 3459 [2020-10-29 08:07:38,724 INFO L226 Difference]: Without dead ends: 2091 [2020-10-29 08:07:38,727 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:07:38,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2091 states. [2020-10-29 08:07:38,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2091 to 2069. [2020-10-29 08:07:38,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2069 states. [2020-10-29 08:07:38,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2069 states to 2069 states and 2670 transitions. [2020-10-29 08:07:38,816 INFO L78 Accepts]: Start accepts. Automaton has 2069 states and 2670 transitions. Word has length 230 [2020-10-29 08:07:38,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:07:38,817 INFO L481 AbstractCegarLoop]: Abstraction has 2069 states and 2670 transitions. [2020-10-29 08:07:38,817 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:07:38,817 INFO L276 IsEmpty]: Start isEmpty. Operand 2069 states and 2670 transitions. [2020-10-29 08:07:38,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2020-10-29 08:07:38,823 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:07:38,823 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:07:38,824 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 08:07:38,824 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:07:38,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:07:38,824 INFO L82 PathProgramCache]: Analyzing trace with hash -617732964, now seen corresponding path program 1 times [2020-10-29 08:07:38,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:07:38,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [435704486] [2020-10-29 08:07:38,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:07:38,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:38,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:38,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:39,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:39,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:40,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:42,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:42,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 307 [2020-10-29 08:07:42,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:07:42,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3491 [2020-10-29 08:07:42,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:42,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:42,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-29 08:07:42,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:07:42,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 298 [2020-10-29 08:07:42,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 08:07:42,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:07:42,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:42,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:42,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:42,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:07:42,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:42,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 08:07:42,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:42,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:42,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:07:42,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:42,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:07:42,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:42,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:07:42,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:42,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:42,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:42,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:42,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-29 08:07:42,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:07:42,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-29 08:07:42,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:42,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:42,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:07:42,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:42,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 08:07:42,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:07:42,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 08:07:42,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:42,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:43,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:43,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:43,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-29 08:07:43,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:07:43,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 530 [2020-10-29 08:07:43,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:43,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:43,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:07:43,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:43,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-29 08:07:43,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:43,620 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 110 proven. 11 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2020-10-29 08:07:43,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [435704486] [2020-10-29 08:07:43,621 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:07:43,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:07:43,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530773449] [2020-10-29 08:07:43,622 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:07:43,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:07:43,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:07:43,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:07:43,623 INFO L87 Difference]: Start difference. First operand 2069 states and 2670 transitions. Second operand 7 states. [2020-10-29 08:07:53,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:07:53,443 INFO L93 Difference]: Finished difference Result 5505 states and 7063 transitions. [2020-10-29 08:07:53,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 08:07:53,444 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 293 [2020-10-29 08:07:53,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:07:53,462 INFO L225 Difference]: With dead ends: 5505 [2020-10-29 08:07:53,462 INFO L226 Difference]: Without dead ends: 3442 [2020-10-29 08:07:53,468 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2020-10-29 08:07:53,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3442 states. [2020-10-29 08:07:53,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3442 to 3099. [2020-10-29 08:07:53,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3099 states. [2020-10-29 08:07:53,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3099 states to 3099 states and 3941 transitions. [2020-10-29 08:07:53,559 INFO L78 Accepts]: Start accepts. Automaton has 3099 states and 3941 transitions. Word has length 293 [2020-10-29 08:07:53,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:07:53,560 INFO L481 AbstractCegarLoop]: Abstraction has 3099 states and 3941 transitions. [2020-10-29 08:07:53,560 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:07:53,560 INFO L276 IsEmpty]: Start isEmpty. Operand 3099 states and 3941 transitions. [2020-10-29 08:07:53,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2020-10-29 08:07:53,573 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:07:53,574 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:07:53,574 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 08:07:53,574 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:07:53,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:07:53,575 INFO L82 PathProgramCache]: Analyzing trace with hash -2143767410, now seen corresponding path program 1 times [2020-10-29 08:07:53,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:07:53,575 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [555193563] [2020-10-29 08:07:53,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:07:53,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:53,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:53,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:54,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:54,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:57,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:58,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:58,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:58,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 498 [2020-10-29 08:07:58,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 08:07:58,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5105 [2020-10-29 08:07:58,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:58,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:58,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:07:58,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-29 08:07:58,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-29 08:07:58,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-29 08:07:58,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:07:58,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:58,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:58,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:58,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:07:58,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:58,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 08:07:58,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:58,890 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:58,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:58,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:58,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:58,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:58,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:07:58,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:58,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:58,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:58,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-29 08:07:58,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:58,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-29 08:07:58,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:58,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:58,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:07:58,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:07:58,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-29 08:07:58,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:07:59,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 08:07:59,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:59,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:59,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:59,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:59,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-29 08:07:59,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:07:59,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 298 [2020-10-29 08:07:59,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:59,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:59,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:07:59,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:07:59,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-29 08:07:59,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:59,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-29 08:07:59,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:59,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:59,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:59,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:07:59,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:59,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-29 08:07:59,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:59,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:59,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:07:59,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:07:59,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-29 08:07:59,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:07:59,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2020-10-29 08:07:59,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:07:59,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:07:59,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:07:59,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:07:59,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:07:59,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 08:07:59,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:07:59,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:07:59,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:07:59,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-29 08:07:59,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:07:59,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:00,153 INFO L134 CoverageAnalysis]: Checked inductivity of 749 backedges. 420 proven. 250 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-10-29 08:08:00,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [555193563] [2020-10-29 08:08:00,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:08:00,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-29 08:08:00,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129487902] [2020-10-29 08:08:00,156 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 08:08:00,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:08:00,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 08:08:00,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-29 08:08:00,157 INFO L87 Difference]: Start difference. First operand 3099 states and 3941 transitions. Second operand 9 states. [2020-10-29 08:08:08,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:08:08,189 INFO L93 Difference]: Finished difference Result 8283 states and 10655 transitions. [2020-10-29 08:08:08,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 08:08:08,190 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 480 [2020-10-29 08:08:08,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:08:08,220 INFO L225 Difference]: With dead ends: 8283 [2020-10-29 08:08:08,220 INFO L226 Difference]: Without dead ends: 4489 [2020-10-29 08:08:08,230 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2020-10-29 08:08:08,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4489 states. [2020-10-29 08:08:08,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4489 to 3805. [2020-10-29 08:08:08,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3805 states. [2020-10-29 08:08:08,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3805 states to 3805 states and 4164 transitions. [2020-10-29 08:08:08,350 INFO L78 Accepts]: Start accepts. Automaton has 3805 states and 4164 transitions. Word has length 480 [2020-10-29 08:08:08,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:08:08,350 INFO L481 AbstractCegarLoop]: Abstraction has 3805 states and 4164 transitions. [2020-10-29 08:08:08,351 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 08:08:08,351 INFO L276 IsEmpty]: Start isEmpty. Operand 3805 states and 4164 transitions. [2020-10-29 08:08:08,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 594 [2020-10-29 08:08:08,367 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:08:08,368 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:08:08,368 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 08:08:08,368 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:08:08,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:08:08,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1063186967, now seen corresponding path program 1 times [2020-10-29 08:08:08,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:08:08,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1597085982] [2020-10-29 08:08:08,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:08:08,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:08,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:08,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:08,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:08,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:13,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:13,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 613 [2020-10-29 08:08:13,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:08:13,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-10-29 08:08:13,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:13,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:13,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:13,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 358 [2020-10-29 08:08:13,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-29 08:08:13,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:13,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:08:13,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:13,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:13,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:13,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:08:13,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:13,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 08:08:13,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:13,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:13,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:13,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:13,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:13,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 08:08:13,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:08:13,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:13,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:13,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:13,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-29 08:08:13,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:13,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 08:08:13,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:13,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:13,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:13,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:13,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:13,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:13,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-29 08:08:13,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:13,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:13,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:13,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:08:13,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:13,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 08:08:13,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:13,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:13,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:13,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:13,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:13,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:13,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-29 08:08:13,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:13,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:13,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:13,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:08:13,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:13,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-29 08:08:13,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:13,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:13,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:08:13,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:13,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 08:08:13,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:13,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-29 08:08:13,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:13,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:14,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:14,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:08:14,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:14,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-10-29 08:08:14,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:14,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:14,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:14,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:08:14,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-29 08:08:14,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:08:14,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2020-10-29 08:08:14,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:14,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:14,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:14,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:08:14,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:14,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 08:08:14,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:14,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:14,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:14,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-29 08:08:14,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:14,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:14,550 INFO L134 CoverageAnalysis]: Checked inductivity of 1218 backedges. 628 proven. 71 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2020-10-29 08:08:14,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1597085982] [2020-10-29 08:08:14,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:08:14,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:08:14,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609966357] [2020-10-29 08:08:14,552 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:08:14,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:08:14,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:08:14,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:08:14,553 INFO L87 Difference]: Start difference. First operand 3805 states and 4164 transitions. Second operand 7 states. [2020-10-29 08:08:18,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:08:18,495 INFO L93 Difference]: Finished difference Result 9334 states and 10352 transitions. [2020-10-29 08:08:18,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:08:18,497 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 593 [2020-10-29 08:08:18,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:08:18,523 INFO L225 Difference]: With dead ends: 9334 [2020-10-29 08:08:18,523 INFO L226 Difference]: Without dead ends: 5535 [2020-10-29 08:08:18,533 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:08:18,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5535 states. [2020-10-29 08:08:18,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5535 to 5512. [2020-10-29 08:08:18,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5512 states. [2020-10-29 08:08:18,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5512 states to 5512 states and 5963 transitions. [2020-10-29 08:08:18,679 INFO L78 Accepts]: Start accepts. Automaton has 5512 states and 5963 transitions. Word has length 593 [2020-10-29 08:08:18,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:08:18,680 INFO L481 AbstractCegarLoop]: Abstraction has 5512 states and 5963 transitions. [2020-10-29 08:08:18,680 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:08:18,680 INFO L276 IsEmpty]: Start isEmpty. Operand 5512 states and 5963 transitions. [2020-10-29 08:08:18,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 712 [2020-10-29 08:08:18,708 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:08:18,709 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:08:18,709 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 08:08:18,709 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:08:18,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:08:18,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1836895773, now seen corresponding path program 1 times [2020-10-29 08:08:18,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:08:18,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [602197037] [2020-10-29 08:08:18,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:08:18,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:18,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:19,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:19,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:19,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:19,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:20,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:23,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:23,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 731 [2020-10-29 08:08:23,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 08:08:23,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5070 [2020-10-29 08:08:23,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:23,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:23,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 08:08:23,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:08:23,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-29 08:08:23,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:24,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:08:24,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:24,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:24,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:24,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:08:24,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:24,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 08:08:24,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:24,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:24,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:08:24,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:24,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:08:24,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:24,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:08:24,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:24,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:24,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:24,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-29 08:08:24,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:24,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-10-29 08:08:24,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:24,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:24,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:24,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:08:24,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-29 08:08:24,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:24,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-29 08:08:24,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:24,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:24,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:24,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:08:24,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:24,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 08:08:24,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:24,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:24,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:24,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-29 08:08:24,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:24,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:24,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-29 08:08:24,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:24,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:24,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:24,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:08:24,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:24,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 08:08:24,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:24,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:24,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:24,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-29 08:08:24,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:24,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:24,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:08:24,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:24,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:24,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:24,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:08:24,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:24,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 08:08:24,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:24,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:24,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:24,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:08:24,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:24,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:24,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 580 [2020-10-29 08:08:24,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:24,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:24,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:24,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:08:24,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:24,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 08:08:24,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:24,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:24,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:24,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-29 08:08:24,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:24,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:25,112 INFO L134 CoverageAnalysis]: Checked inductivity of 1151 backedges. 295 proven. 375 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2020-10-29 08:08:25,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [602197037] [2020-10-29 08:08:25,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:08:25,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:08:25,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390368144] [2020-10-29 08:08:25,114 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:08:25,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:08:25,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:08:25,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:08:25,115 INFO L87 Difference]: Start difference. First operand 5512 states and 5963 transitions. Second operand 7 states. [2020-10-29 08:08:28,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:08:28,500 INFO L93 Difference]: Finished difference Result 11739 states and 12711 transitions. [2020-10-29 08:08:28,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:08:28,501 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 711 [2020-10-29 08:08:28,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:08:28,527 INFO L225 Difference]: With dead ends: 11739 [2020-10-29 08:08:28,527 INFO L226 Difference]: Without dead ends: 6233 [2020-10-29 08:08:28,539 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:08:28,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6233 states. [2020-10-29 08:08:28,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6233 to 6192. [2020-10-29 08:08:28,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6192 states. [2020-10-29 08:08:28,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6192 states to 6192 states and 6678 transitions. [2020-10-29 08:08:28,703 INFO L78 Accepts]: Start accepts. Automaton has 6192 states and 6678 transitions. Word has length 711 [2020-10-29 08:08:28,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:08:28,703 INFO L481 AbstractCegarLoop]: Abstraction has 6192 states and 6678 transitions. [2020-10-29 08:08:28,704 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:08:28,704 INFO L276 IsEmpty]: Start isEmpty. Operand 6192 states and 6678 transitions. [2020-10-29 08:08:28,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 796 [2020-10-29 08:08:28,720 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:08:28,722 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:08:28,722 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 08:08:28,722 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:08:28,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:08:28,723 INFO L82 PathProgramCache]: Analyzing trace with hash 1005559283, now seen corresponding path program 1 times [2020-10-29 08:08:28,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:08:28,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [328981501] [2020-10-29 08:08:28,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:08:28,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:28,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:29,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:29,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:31,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:32,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:32,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:33,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:33,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 815 [2020-10-29 08:08:33,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 08:08:33,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5069 [2020-10-29 08:08:33,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:33,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:33,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:33,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-29 08:08:33,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-29 08:08:33,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:34,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:08:34,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:34,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:34,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:34,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:08:34,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:34,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:08:34,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:34,052 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:34,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:34,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:34,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:34,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:34,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:08:34,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:34,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:34,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:34,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:08:34,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:34,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-29 08:08:34,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:34,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:34,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:08:34,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:34,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-29 08:08:34,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:34,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:08:34,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:34,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:34,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:34,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-29 08:08:34,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:34,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-29 08:08:34,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:34,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:34,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:34,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:08:34,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-29 08:08:34,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:34,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2020-10-29 08:08:34,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:34,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:34,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:34,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:08:34,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:34,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-29 08:08:34,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:34,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:34,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:34,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-29 08:08:34,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:34,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:34,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 554 [2020-10-29 08:08:34,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:34,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:34,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:34,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:08:34,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:34,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-29 08:08:34,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:34,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:34,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:34,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:08:34,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:34,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:34,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 664 [2020-10-29 08:08:34,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:34,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:34,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:34,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 08:08:34,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:34,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 08:08:34,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:34,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:34,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:34,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-29 08:08:34,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:34,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:35,179 INFO L134 CoverageAnalysis]: Checked inductivity of 1364 backedges. 467 proven. 319 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2020-10-29 08:08:35,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [328981501] [2020-10-29 08:08:35,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:08:35,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:08:35,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687933818] [2020-10-29 08:08:35,182 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:08:35,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:08:35,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:08:35,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:08:35,183 INFO L87 Difference]: Start difference. First operand 6192 states and 6678 transitions. Second operand 7 states. [2020-10-29 08:08:38,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:08:38,585 INFO L93 Difference]: Finished difference Result 13437 states and 14707 transitions. [2020-10-29 08:08:38,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:08:38,587 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 795 [2020-10-29 08:08:38,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:08:38,616 INFO L225 Difference]: With dead ends: 13437 [2020-10-29 08:08:38,616 INFO L226 Difference]: Without dead ends: 7927 [2020-10-29 08:08:38,629 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:08:38,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7927 states. [2020-10-29 08:08:38,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7927 to 7907. [2020-10-29 08:08:38,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7907 states. [2020-10-29 08:08:38,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7907 states to 7907 states and 8563 transitions. [2020-10-29 08:08:38,795 INFO L78 Accepts]: Start accepts. Automaton has 7907 states and 8563 transitions. Word has length 795 [2020-10-29 08:08:38,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:08:38,796 INFO L481 AbstractCegarLoop]: Abstraction has 7907 states and 8563 transitions. [2020-10-29 08:08:38,796 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:08:38,796 INFO L276 IsEmpty]: Start isEmpty. Operand 7907 states and 8563 transitions. [2020-10-29 08:08:38,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1324 [2020-10-29 08:08:38,826 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:08:38,827 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:08:38,828 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 08:08:38,828 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:08:38,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:08:38,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1889569273, now seen corresponding path program 1 times [2020-10-29 08:08:38,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:08:38,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [982865775] [2020-10-29 08:08:38,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:08:39,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:39,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:39,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:39,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:39,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:39,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:40,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:44,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:44,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1349 [2020-10-29 08:08:44,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-29 08:08:44,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5070 [2020-10-29 08:08:44,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:44,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:44,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 08:08:44,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 08:08:44,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 504 [2020-10-29 08:08:44,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:44,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:08:44,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:44,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:44,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:44,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:08:44,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:44,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 08:08:44,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:44,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:44,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:08:44,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:44,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 08:08:44,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:44,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:08:44,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:44,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:44,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:44,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:44,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-29 08:08:44,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 08:08:44,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 297 [2020-10-29 08:08:44,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:44,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:44,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:08:44,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:44,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 242 [2020-10-29 08:08:44,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:44,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-29 08:08:44,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:44,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:44,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:44,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-29 08:08:44,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:44,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-10-29 08:08:44,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:44,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:44,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:44,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:08:44,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-29 08:08:44,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:45,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-29 08:08:45,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:45,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:45,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:45,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:08:45,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:45,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 08:08:45,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:45,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:45,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:45,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-29 08:08:45,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:45,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:45,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 573 [2020-10-29 08:08:45,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:45,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:45,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:45,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:08:45,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:45,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-29 08:08:45,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:45,365 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:45,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:45,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-29 08:08:45,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:45,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:45,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 717 [2020-10-29 08:08:45,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:45,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:45,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:45,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:08:45,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:45,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 08:08:45,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:45,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:45,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:45,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:08:45,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:45,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:45,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 859 [2020-10-29 08:08:45,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:45,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:45,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:45,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:08:45,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:45,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 08:08:45,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:45,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:45,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:45,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:08:45,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:45,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:45,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 969 [2020-10-29 08:08:45,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:45,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:45,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:45,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-29 08:08:45,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:45,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-29 08:08:45,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:45,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:45,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:45,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-29 08:08:45,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:45,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:45,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:08:45,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:45,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:45,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:45,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 08:08:45,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:45,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:08:45,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:45,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:45,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:45,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:45,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:45,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:47,076 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 674 proven. 701 refuted. 0 times theorem prover too weak. 1745 trivial. 0 not checked. [2020-10-29 08:08:47,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [982865775] [2020-10-29 08:08:47,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:08:47,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:08:47,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35523398] [2020-10-29 08:08:47,079 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:08:47,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:08:47,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:08:47,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:08:47,080 INFO L87 Difference]: Start difference. First operand 7907 states and 8563 transitions. Second operand 7 states. [2020-10-29 08:08:50,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:08:50,489 INFO L93 Difference]: Finished difference Result 15148 states and 16452 transitions. [2020-10-29 08:08:50,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:08:50,490 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1323 [2020-10-29 08:08:50,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:08:50,513 INFO L225 Difference]: With dead ends: 15148 [2020-10-29 08:08:50,513 INFO L226 Difference]: Without dead ends: 7923 [2020-10-29 08:08:50,528 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:08:50,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7923 states. [2020-10-29 08:08:50,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7923 to 7907. [2020-10-29 08:08:50,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7907 states. [2020-10-29 08:08:50,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7907 states to 7907 states and 8561 transitions. [2020-10-29 08:08:50,689 INFO L78 Accepts]: Start accepts. Automaton has 7907 states and 8561 transitions. Word has length 1323 [2020-10-29 08:08:50,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:08:50,690 INFO L481 AbstractCegarLoop]: Abstraction has 7907 states and 8561 transitions. [2020-10-29 08:08:50,690 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:08:50,690 INFO L276 IsEmpty]: Start isEmpty. Operand 7907 states and 8561 transitions. [2020-10-29 08:08:50,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1358 [2020-10-29 08:08:50,720 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:08:50,721 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:08:50,721 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 08:08:50,721 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:08:50,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:08:50,722 INFO L82 PathProgramCache]: Analyzing trace with hash -423613940, now seen corresponding path program 1 times [2020-10-29 08:08:50,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:08:50,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [375729181] [2020-10-29 08:08:50,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:08:50,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:51,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:51,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:51,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:51,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:54,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:56,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:56,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1385 [2020-10-29 08:08:56,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:08:56,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5088 [2020-10-29 08:08:56,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:56,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:56,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:56,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 615 [2020-10-29 08:08:56,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-29 08:08:56,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:56,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:08:56,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:56,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:56,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:56,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:08:56,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:56,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:08:56,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:56,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:56,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:56,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:56,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:56,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:56,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:08:56,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:56,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:56,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:56,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:08:56,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:56,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-29 08:08:56,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:56,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:56,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:56,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:56,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:56,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:08:56,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:08:56,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:56,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:56,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:56,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:08:56,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:56,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 08:08:56,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:56,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:56,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:56,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:56,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:56,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:56,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:08:56,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:56,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:56,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:56,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:08:56,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:56,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 08:08:56,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:56,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:56,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:56,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:56,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:56,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:56,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:08:56,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:56,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:56,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:56,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-29 08:08:56,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:56,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 08:08:56,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:56,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:56,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:08:56,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:56,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-29 08:08:56,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:56,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 607 [2020-10-29 08:08:56,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:56,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:56,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:56,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:08:56,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:56,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-29 08:08:56,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:56,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:56,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:08:56,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:08:56,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-29 08:08:56,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:56,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 751 [2020-10-29 08:08:56,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:56,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:56,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:56,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:08:56,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:56,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-29 08:08:56,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:56,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:56,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:56,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:08:56,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:56,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:56,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 893 [2020-10-29 08:08:56,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:56,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:57,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:57,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:08:57,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:57,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 08:08:57,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:57,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:57,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:57,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:08:57,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:57,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:57,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1003 [2020-10-29 08:08:57,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:57,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:57,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:57,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-29 08:08:57,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:57,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-29 08:08:57,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:57,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:57,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:57,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-29 08:08:57,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:57,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:57,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:08:57,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:08:57,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:08:57,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:08:57,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 08:08:57,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:08:57,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 08:08:57,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:08:57,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:08:57,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:08:57,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:08:57,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:08:57,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:08:58,350 INFO L134 CoverageAnalysis]: Checked inductivity of 3823 backedges. 1009 proven. 389 refuted. 0 times theorem prover too weak. 2425 trivial. 0 not checked. [2020-10-29 08:08:58,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [375729181] [2020-10-29 08:08:58,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:08:58,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:08:58,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129114252] [2020-10-29 08:08:58,352 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:08:58,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:08:58,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:08:58,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:08:58,353 INFO L87 Difference]: Start difference. First operand 7907 states and 8561 transitions. Second operand 7 states. [2020-10-29 08:09:02,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:09:02,385 INFO L93 Difference]: Finished difference Result 19556 states and 21552 transitions. [2020-10-29 08:09:02,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:09:02,386 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1357 [2020-10-29 08:09:02,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:09:02,422 INFO L225 Difference]: With dead ends: 19556 [2020-10-29 08:09:02,422 INFO L226 Difference]: Without dead ends: 12331 [2020-10-29 08:09:02,439 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:09:02,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12331 states. [2020-10-29 08:09:02,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12331 to 11988. [2020-10-29 08:09:02,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11988 states. [2020-10-29 08:09:02,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11988 states to 11988 states and 13010 transitions. [2020-10-29 08:09:02,654 INFO L78 Accepts]: Start accepts. Automaton has 11988 states and 13010 transitions. Word has length 1357 [2020-10-29 08:09:02,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:09:02,656 INFO L481 AbstractCegarLoop]: Abstraction has 11988 states and 13010 transitions. [2020-10-29 08:09:02,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:09:02,656 INFO L276 IsEmpty]: Start isEmpty. Operand 11988 states and 13010 transitions. [2020-10-29 08:09:02,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1359 [2020-10-29 08:09:02,693 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:09:02,696 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:09:02,696 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 08:09:02,697 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:09:02,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:09:02,697 INFO L82 PathProgramCache]: Analyzing trace with hash 1663930006, now seen corresponding path program 1 times [2020-10-29 08:09:02,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:09:02,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2112307475] [2020-10-29 08:09:02,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:09:02,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:03,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:03,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:03,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:08,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:08,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1386 [2020-10-29 08:09:08,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 08:09:08,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5142 [2020-10-29 08:09:08,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:08,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:08,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:09:08,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 616 [2020-10-29 08:09:08,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-29 08:09:08,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:09:08,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:09:08,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:08,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:08,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:08,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:09:08,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:08,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 08:09:08,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:08,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:08,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:08,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:08,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:08,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:08,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:09:08,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:08,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:08,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:08,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:09:08,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:08,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-29 08:09:08,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:08,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:08,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:08,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:08,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:08,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:08,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:09:08,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:08,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:08,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:08,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:09:08,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:08,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-29 08:09:08,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:08,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:08,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:08,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:08,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:08,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:08,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:09:08,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:08,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:08,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:08,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:09:08,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:08,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 08:09:08,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:08,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:08,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:08,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:08,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:08,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:08,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:09:08,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:08,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:08,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:08,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:09:08,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:08,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 08:09:08,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:08,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:08,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:09:08,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:08,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-29 08:09:08,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:08,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-29 08:09:08,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:08,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:08,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:08,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:09:08,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:08,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-29 08:09:08,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:08,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:08,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:09:08,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:09:08,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-29 08:09:08,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:09,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 752 [2020-10-29 08:09:09,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:09,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:09,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:09,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:09:09,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:09,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-29 08:09:09,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:09,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:09,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:09,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:09:09,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:09,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:09,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 894 [2020-10-29 08:09:09,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:09,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:09,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:09,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:09:09,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:09,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 08:09:09,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:09,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:09,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:09,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:09:09,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:09,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:09,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1004 [2020-10-29 08:09:09,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:09,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:09,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:09,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-29 08:09:09,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:09,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-29 08:09:09,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:09,334 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:09,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:09,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-29 08:09:09,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:09,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:09,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:09:09,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:09,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:09,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:09,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 08:09:09,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:09,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:09:09,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:09,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:09,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:09,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:09,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:09,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:10,544 INFO L134 CoverageAnalysis]: Checked inductivity of 3830 backedges. 1010 proven. 389 refuted. 0 times theorem prover too weak. 2431 trivial. 0 not checked. [2020-10-29 08:09:10,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2112307475] [2020-10-29 08:09:10,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:09:10,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 08:09:10,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629410508] [2020-10-29 08:09:10,546 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 08:09:10,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:09:10,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 08:09:10,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-29 08:09:10,547 INFO L87 Difference]: Start difference. First operand 11988 states and 13010 transitions. Second operand 8 states. [2020-10-29 08:09:15,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:09:15,999 INFO L93 Difference]: Finished difference Result 25671 states and 28105 transitions. [2020-10-29 08:09:16,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:09:16,000 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1358 [2020-10-29 08:09:16,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:09:16,043 INFO L225 Difference]: With dead ends: 25671 [2020-10-29 08:09:16,043 INFO L226 Difference]: Without dead ends: 14365 [2020-10-29 08:09:16,067 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:09:16,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14365 states. [2020-10-29 08:09:16,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14365 to 14026. [2020-10-29 08:09:16,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14026 states. [2020-10-29 08:09:16,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14026 states to 14026 states and 15121 transitions. [2020-10-29 08:09:16,294 INFO L78 Accepts]: Start accepts. Automaton has 14026 states and 15121 transitions. Word has length 1358 [2020-10-29 08:09:16,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:09:16,296 INFO L481 AbstractCegarLoop]: Abstraction has 14026 states and 15121 transitions. [2020-10-29 08:09:16,296 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 08:09:16,296 INFO L276 IsEmpty]: Start isEmpty. Operand 14026 states and 15121 transitions. [2020-10-29 08:09:16,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1361 [2020-10-29 08:09:16,333 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:09:16,334 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:09:16,334 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 08:09:16,335 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:09:16,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:09:16,335 INFO L82 PathProgramCache]: Analyzing trace with hash -1851599070, now seen corresponding path program 1 times [2020-10-29 08:09:16,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:09:16,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [159017081] [2020-10-29 08:09:16,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:09:16,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:16,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:16,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:19,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:21,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:21,647 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:21,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1384 [2020-10-29 08:09:21,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:09:21,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5087 [2020-10-29 08:09:21,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:21,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:21,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:09:21,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 741 [2020-10-29 08:09:21,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 08:09:21,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:21,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:09:21,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:21,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:21,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:21,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:09:21,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:21,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:09:21,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:21,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:21,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:21,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:21,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:21,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:21,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:09:21,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:21,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:21,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:21,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:09:21,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:21,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-29 08:09:21,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:21,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:21,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:21,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:21,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:21,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:21,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:09:21,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:21,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:21,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:21,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:09:21,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:21,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 08:09:21,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:21,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:21,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:21,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:21,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:21,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:22,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:09:22,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:22,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:22,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:22,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:09:22,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:22,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 08:09:22,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:22,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:22,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:22,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:22,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:22,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:22,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:09:22,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:22,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:22,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:22,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-29 08:09:22,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:22,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-29 08:09:22,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:22,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:22,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:09:22,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:22,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-29 08:09:22,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:22,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 733 [2020-10-29 08:09:22,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:22,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:22,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:22,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:09:22,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:22,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 421 [2020-10-29 08:09:22,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:22,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:22,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:09:22,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:09:22,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:09:22,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:23,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1006 [2020-10-29 08:09:23,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:23,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:23,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:23,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-29 08:09:23,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:23,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-29 08:09:23,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:23,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:23,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:23,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-29 08:09:23,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:23,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:23,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:09:23,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:23,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:23,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:23,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 08:09:23,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:23,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:09:23,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:23,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:23,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:23,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:23,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:23,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:25,025 INFO L134 CoverageAnalysis]: Checked inductivity of 2983 backedges. 1098 proven. 272 refuted. 0 times theorem prover too weak. 1613 trivial. 0 not checked. [2020-10-29 08:09:25,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [159017081] [2020-10-29 08:09:25,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:09:25,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:09:25,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980567794] [2020-10-29 08:09:25,027 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:09:25,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:09:25,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:09:25,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:09:25,029 INFO L87 Difference]: Start difference. First operand 14026 states and 15121 transitions. Second operand 7 states. [2020-10-29 08:09:29,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:09:29,237 INFO L93 Difference]: Finished difference Result 28070 states and 30318 transitions. [2020-10-29 08:09:29,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:09:29,238 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1360 [2020-10-29 08:09:29,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:09:29,289 INFO L225 Difference]: With dead ends: 28070 [2020-10-29 08:09:29,289 INFO L226 Difference]: Without dead ends: 14726 [2020-10-29 08:09:29,316 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:09:29,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14726 states. [2020-10-29 08:09:29,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14726 to 14710. [2020-10-29 08:09:29,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14710 states. [2020-10-29 08:09:29,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14710 states to 14710 states and 15829 transitions. [2020-10-29 08:09:29,573 INFO L78 Accepts]: Start accepts. Automaton has 14710 states and 15829 transitions. Word has length 1360 [2020-10-29 08:09:29,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:09:29,575 INFO L481 AbstractCegarLoop]: Abstraction has 14710 states and 15829 transitions. [2020-10-29 08:09:29,575 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:09:29,575 INFO L276 IsEmpty]: Start isEmpty. Operand 14710 states and 15829 transitions. [2020-10-29 08:09:29,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1384 [2020-10-29 08:09:29,634 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:09:29,635 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:09:29,635 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 08:09:29,636 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:09:29,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:09:29,637 INFO L82 PathProgramCache]: Analyzing trace with hash -1345092200, now seen corresponding path program 1 times [2020-10-29 08:09:29,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:09:29,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1860177612] [2020-10-29 08:09:29,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:09:30,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:30,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:30,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:30,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:30,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:31,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:35,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:35,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1411 [2020-10-29 08:09:35,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:09:35,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-29 08:09:35,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:35,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:35,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:09:35,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-29 08:09:35,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-29 08:09:35,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:35,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:09:35,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:35,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:35,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:35,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:09:35,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:35,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:09:35,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:35,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:35,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:35,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:35,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:35,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:35,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:09:35,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:35,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:35,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:35,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:09:35,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:35,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-29 08:09:35,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:35,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:35,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:09:35,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:35,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-29 08:09:35,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:35,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:09:35,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:35,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:35,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:35,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-29 08:09:35,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:35,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-29 08:09:35,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:35,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:35,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:09:35,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:09:35,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-29 08:09:35,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:35,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-29 08:09:35,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:35,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:35,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:35,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:09:35,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:35,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 08:09:35,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:35,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:35,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:35,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-29 08:09:35,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:35,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:36,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-29 08:09:36,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:36,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:36,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:36,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-29 08:09:36,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:36,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 08:09:36,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:36,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:36,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:36,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-29 08:09:36,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:36,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:36,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 633 [2020-10-29 08:09:36,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:36,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:36,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:36,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:09:36,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:36,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 08:09:36,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:36,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:36,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:36,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-29 08:09:36,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:36,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:36,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 777 [2020-10-29 08:09:36,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:36,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:36,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:36,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:09:36,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:36,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 08:09:36,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:36,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:36,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:36,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:09:36,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:36,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:36,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 919 [2020-10-29 08:09:36,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:36,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:36,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:36,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:09:36,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:36,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 08:09:36,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:36,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:36,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:36,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:09:36,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:36,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:36,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1029 [2020-10-29 08:09:36,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:36,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:36,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:36,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-29 08:09:36,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:36,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-29 08:09:36,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:36,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:36,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:36,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-29 08:09:36,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:36,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:36,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:09:36,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:36,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:36,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:36,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 08:09:36,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:36,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:09:36,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:36,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:36,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:36,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:36,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:36,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:37,968 INFO L134 CoverageAnalysis]: Checked inductivity of 4005 backedges. 655 proven. 766 refuted. 0 times theorem prover too weak. 2584 trivial. 0 not checked. [2020-10-29 08:09:37,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1860177612] [2020-10-29 08:09:37,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:09:37,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:09:37,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966568436] [2020-10-29 08:09:37,970 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:09:37,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:09:37,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:09:37,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:09:37,971 INFO L87 Difference]: Start difference. First operand 14710 states and 15829 transitions. Second operand 7 states. [2020-10-29 08:09:41,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:09:41,842 INFO L93 Difference]: Finished difference Result 30441 states and 32942 transitions. [2020-10-29 08:09:41,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 08:09:41,844 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1383 [2020-10-29 08:09:41,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:09:41,884 INFO L225 Difference]: With dead ends: 30441 [2020-10-29 08:09:41,885 INFO L226 Difference]: Without dead ends: 16413 [2020-10-29 08:09:41,905 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:09:41,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16413 states. [2020-10-29 08:09:42,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16413 to 16411. [2020-10-29 08:09:42,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16411 states. [2020-10-29 08:09:42,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16411 states to 16411 states and 17702 transitions. [2020-10-29 08:09:42,171 INFO L78 Accepts]: Start accepts. Automaton has 16411 states and 17702 transitions. Word has length 1383 [2020-10-29 08:09:42,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:09:42,171 INFO L481 AbstractCegarLoop]: Abstraction has 16411 states and 17702 transitions. [2020-10-29 08:09:42,171 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:09:42,172 INFO L276 IsEmpty]: Start isEmpty. Operand 16411 states and 17702 transitions. [2020-10-29 08:09:42,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1445 [2020-10-29 08:09:42,209 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:09:42,210 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:09:42,210 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 08:09:42,210 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:09:42,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:09:42,211 INFO L82 PathProgramCache]: Analyzing trace with hash 1740057062, now seen corresponding path program 1 times [2020-10-29 08:09:42,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:09:42,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1205214548] [2020-10-29 08:09:42,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:09:42,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:42,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:42,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:43,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:43,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:43,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:47,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:47,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1472 [2020-10-29 08:09:47,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:09:47,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-10-29 08:09:47,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:47,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:47,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:09:47,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 702 [2020-10-29 08:09:47,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-29 08:09:47,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:47,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:09:47,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:47,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:47,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:47,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:09:47,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:47,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:09:47,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:47,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:47,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:47,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:47,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:47,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:47,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:09:47,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:47,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:47,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:47,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:09:47,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:47,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 08:09:47,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:47,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:47,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:47,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:47,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:47,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:47,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:09:47,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:47,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:47,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:47,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-29 08:09:47,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:47,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 08:09:47,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:47,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:47,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:47,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:47,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:47,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:47,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:09:47,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:47,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:47,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:47,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:09:47,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:47,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 08:09:47,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:47,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:47,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:47,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:47,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:47,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:48,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-29 08:09:48,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:48,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:48,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:48,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-29 08:09:48,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:48,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-29 08:09:48,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:48,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:48,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:09:48,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:48,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-29 08:09:48,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:48,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 694 [2020-10-29 08:09:48,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:48,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:48,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:48,282 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 08:09:48,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:48,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-29 08:09:48,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:48,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:48,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:09:48,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:09:48,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-29 08:09:48,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:48,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 838 [2020-10-29 08:09:48,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:48,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:48,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:48,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 08:09:48,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:48,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 08:09:48,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:48,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:48,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:48,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-29 08:09:48,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:48,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:48,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 980 [2020-10-29 08:09:48,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:48,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:48,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:48,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:09:48,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:48,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-29 08:09:48,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:48,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:48,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:48,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:09:48,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:48,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:48,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1090 [2020-10-29 08:09:48,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:48,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:48,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:48,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-29 08:09:48,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:48,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-29 08:09:48,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:48,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:48,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:48,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-29 08:09:48,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:48,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:48,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:09:48,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:48,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:48,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:09:48,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 08:09:48,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:09:48,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:09:48,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:09:48,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:09:48,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:09:48,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:09:48,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:09:48,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:09:49,852 INFO L134 CoverageAnalysis]: Checked inductivity of 4127 backedges. 1035 proven. 389 refuted. 0 times theorem prover too weak. 2703 trivial. 0 not checked. [2020-10-29 08:09:49,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1205214548] [2020-10-29 08:09:49,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:09:49,853 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:09:49,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923164270] [2020-10-29 08:09:49,854 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:09:49,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:09:49,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:09:49,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:09:49,855 INFO L87 Difference]: Start difference. First operand 16411 states and 17702 transitions. Second operand 7 states. [2020-10-29 08:09:56,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:09:56,616 INFO L93 Difference]: Finished difference Result 35871 states and 38938 transitions. [2020-10-29 08:09:56,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 08:09:56,617 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1444 [2020-10-29 08:09:56,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:09:56,676 INFO L225 Difference]: With dead ends: 35871 [2020-10-29 08:09:56,676 INFO L226 Difference]: Without dead ends: 20142 [2020-10-29 08:09:56,701 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 08:09:56,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20142 states. [2020-10-29 08:09:57,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20142 to 19464. [2020-10-29 08:09:57,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19464 states. [2020-10-29 08:09:57,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19464 states to 19464 states and 21131 transitions. [2020-10-29 08:09:57,291 INFO L78 Accepts]: Start accepts. Automaton has 19464 states and 21131 transitions. Word has length 1444 [2020-10-29 08:09:57,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:09:57,292 INFO L481 AbstractCegarLoop]: Abstraction has 19464 states and 21131 transitions. [2020-10-29 08:09:57,292 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:09:57,292 INFO L276 IsEmpty]: Start isEmpty. Operand 19464 states and 21131 transitions. [2020-10-29 08:09:57,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1499 [2020-10-29 08:09:57,332 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:09:57,333 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:09:57,333 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 08:09:57,334 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:09:57,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:09:57,334 INFO L82 PathProgramCache]: Analyzing trace with hash -1317377660, now seen corresponding path program 1 times [2020-10-29 08:09:57,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:09:57,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [776115945] [2020-10-29 08:09:57,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:09:57,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:09:57,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:57,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:58,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:09:58,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:00,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:02,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:02,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1526 [2020-10-29 08:10:02,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 08:10:02,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-29 08:10:02,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:02,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:02,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:10:02,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 794 [2020-10-29 08:10:02,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-29 08:10:02,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:02,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:10:02,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:02,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:02,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:02,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:10:02,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:02,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:10:02,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:02,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:02,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:02,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:02,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:02,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:02,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:10:02,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:02,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:02,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:02,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:10:02,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:02,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 08:10:02,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:02,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:02,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:02,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:02,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:02,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:02,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:10:02,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:02,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:02,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:02,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-29 08:10:02,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:02,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-29 08:10:02,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:02,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:02,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:02,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:02,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:02,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:02,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:10:02,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:02,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:03,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:03,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:10:03,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:03,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 08:10:03,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:03,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:03,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:03,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:03,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:03,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:03,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-29 08:10:03,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:03,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:03,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:03,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:10:03,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:03,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 08:10:03,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:03,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:03,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:03,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:03,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:03,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:03,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-29 08:10:03,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:03,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:03,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:03,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:10:03,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:03,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-29 08:10:03,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:03,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:03,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:10:03,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:03,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-29 08:10:03,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:03,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-29 08:10:03,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:03,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:03,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:03,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-29 08:10:03,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:03,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-29 08:10:03,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:03,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:03,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:10:03,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:10:03,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-29 08:10:03,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:03,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1034 [2020-10-29 08:10:03,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:03,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:03,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:03,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:10:03,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:03,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-29 08:10:03,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:03,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:03,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:03,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:10:03,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:03,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:03,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1144 [2020-10-29 08:10:03,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:03,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:04,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:04,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-29 08:10:04,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:04,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-29 08:10:04,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:04,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:04,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:04,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-29 08:10:04,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:04,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:04,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:10:04,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:04,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:04,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:04,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 08:10:04,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:04,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:10:04,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:04,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:04,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:04,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:04,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:04,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:05,687 INFO L134 CoverageAnalysis]: Checked inductivity of 4110 backedges. 1293 proven. 356 refuted. 0 times theorem prover too weak. 2461 trivial. 0 not checked. [2020-10-29 08:10:05,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [776115945] [2020-10-29 08:10:05,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:10:05,688 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:10:05,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010232109] [2020-10-29 08:10:05,689 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:10:05,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:10:05,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:10:05,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:10:05,690 INFO L87 Difference]: Start difference. First operand 19464 states and 21131 transitions. Second operand 7 states. [2020-10-29 08:10:10,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:10:10,469 INFO L93 Difference]: Finished difference Result 39937 states and 43337 transitions. [2020-10-29 08:10:10,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 08:10:10,470 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1498 [2020-10-29 08:10:10,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:10:10,518 INFO L225 Difference]: With dead ends: 39937 [2020-10-29 08:10:10,519 INFO L226 Difference]: Without dead ends: 21155 [2020-10-29 08:10:10,542 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-29 08:10:10,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21155 states. [2020-10-29 08:10:10,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21155 to 21155. [2020-10-29 08:10:10,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21155 states. [2020-10-29 08:10:10,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21155 states to 21155 states and 22885 transitions. [2020-10-29 08:10:10,902 INFO L78 Accepts]: Start accepts. Automaton has 21155 states and 22885 transitions. Word has length 1498 [2020-10-29 08:10:10,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:10:10,903 INFO L481 AbstractCegarLoop]: Abstraction has 21155 states and 22885 transitions. [2020-10-29 08:10:10,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:10:10,903 INFO L276 IsEmpty]: Start isEmpty. Operand 21155 states and 22885 transitions. [2020-10-29 08:10:10,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1576 [2020-10-29 08:10:10,946 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:10:10,947 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:10:10,947 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 08:10:10,947 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:10:10,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:10:10,948 INFO L82 PathProgramCache]: Analyzing trace with hash -913545074, now seen corresponding path program 1 times [2020-10-29 08:10:10,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:10:10,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [796299723] [2020-10-29 08:10:10,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:10:11,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:11,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:11,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:12,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:12,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:16,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:16,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1605 [2020-10-29 08:10:16,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:10:16,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-29 08:10:16,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:16,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:16,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:10:16,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1122 [2020-10-29 08:10:16,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-29 08:10:16,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:16,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:10:16,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:16,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:16,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:16,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:10:16,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:16,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 08:10:16,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:16,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:16,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:16,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:16,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:16,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:16,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:10:16,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:16,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:16,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:16,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:10:16,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:16,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-29 08:10:16,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:16,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:16,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:16,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:16,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:16,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 08:10:16,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:10:16,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:16,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:17,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:17,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-29 08:10:17,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:17,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 330 [2020-10-29 08:10:17,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:17,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:17,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:17,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:17,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:17,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:17,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-29 08:10:17,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:17,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:17,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:17,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:10:17,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:17,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 08:10:17,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:17,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:17,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:17,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:17,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:17,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:17,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-29 08:10:17,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:17,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:17,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:17,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:10:17,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:17,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 08:10:17,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:17,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:17,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:17,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:17,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:17,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:17,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-29 08:10:17,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:17,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:17,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:17,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:10:17,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:17,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 08:10:17,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:17,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:17,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:17,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:17,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:17,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:17,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-29 08:10:17,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:17,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:17,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:17,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-29 08:10:17,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:17,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 341 [2020-10-29 08:10:17,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:17,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:17,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:10:17,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:17,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 321 [2020-10-29 08:10:17,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:17,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:10:17,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:17,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:17,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:17,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-29 08:10:17,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:17,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-29 08:10:17,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:17,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:17,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:10:17,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:17,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-29 08:10:17,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:17,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1111 [2020-10-29 08:10:17,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:18,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:18,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:18,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:10:18,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:18,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-29 08:10:18,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:18,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:18,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:10:18,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:10:18,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-29 08:10:18,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:18,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1221 [2020-10-29 08:10:18,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:18,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:18,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:18,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-29 08:10:18,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:18,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-29 08:10:18,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:18,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:18,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:18,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-29 08:10:18,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:18,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:18,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:10:18,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:18,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:18,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:18,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 08:10:18,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:18,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 08:10:18,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:18,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:18,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:18,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:18,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:18,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:19,801 INFO L134 CoverageAnalysis]: Checked inductivity of 4155 backedges. 1123 proven. 112 refuted. 0 times theorem prover too weak. 2920 trivial. 0 not checked. [2020-10-29 08:10:19,802 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [796299723] [2020-10-29 08:10:19,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:10:19,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:10:19,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956102762] [2020-10-29 08:10:19,804 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:10:19,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:10:19,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:10:19,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:10:19,804 INFO L87 Difference]: Start difference. First operand 21155 states and 22885 transitions. Second operand 7 states. [2020-10-29 08:10:24,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:10:24,300 INFO L93 Difference]: Finished difference Result 42639 states and 46209 transitions. [2020-10-29 08:10:24,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:10:24,301 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1575 [2020-10-29 08:10:24,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:10:24,343 INFO L225 Difference]: With dead ends: 42639 [2020-10-29 08:10:24,343 INFO L226 Difference]: Without dead ends: 22166 [2020-10-29 08:10:24,370 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:10:24,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22166 states. [2020-10-29 08:10:24,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22166 to 21486. [2020-10-29 08:10:24,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21486 states. [2020-10-29 08:10:24,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21486 states to 21486 states and 22817 transitions. [2020-10-29 08:10:24,728 INFO L78 Accepts]: Start accepts. Automaton has 21486 states and 22817 transitions. Word has length 1575 [2020-10-29 08:10:24,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:10:24,729 INFO L481 AbstractCegarLoop]: Abstraction has 21486 states and 22817 transitions. [2020-10-29 08:10:24,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:10:24,729 INFO L276 IsEmpty]: Start isEmpty. Operand 21486 states and 22817 transitions. [2020-10-29 08:10:24,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1652 [2020-10-29 08:10:24,770 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:10:24,771 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:10:24,772 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 08:10:24,772 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:10:24,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:10:24,773 INFO L82 PathProgramCache]: Analyzing trace with hash 834779189, now seen corresponding path program 1 times [2020-10-29 08:10:24,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:10:24,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [45724876] [2020-10-29 08:10:24,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:10:24,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:25,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:25,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:25,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:25,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:30,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:30,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1683 [2020-10-29 08:10:30,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:10:30,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-29 08:10:30,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:30,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:30,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:10:30,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 679 [2020-10-29 08:10:30,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-29 08:10:30,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:30,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:10:30,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:30,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:30,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:30,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:10:30,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:30,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:10:30,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:30,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:30,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:30,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:30,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:30,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:30,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:10:30,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:30,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:30,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:30,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:10:30,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:30,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-29 08:10:30,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:30,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:30,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:30,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:30,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:30,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:30,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:10:30,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:30,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:30,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:30,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-29 08:10:30,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:30,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 08:10:30,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:30,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:30,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:30,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:30,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:30,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:30,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-29 08:10:30,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:30,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:30,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:30,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:10:30,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:30,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 08:10:30,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:30,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:30,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:30,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:30,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:30,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:30,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-29 08:10:30,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:30,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:30,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:30,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:10:30,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:30,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 08:10:30,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:30,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:30,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:10:30,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:30,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-29 08:10:30,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:30,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2020-10-29 08:10:30,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:30,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:30,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:30,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 08:10:30,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:30,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-29 08:10:30,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:30,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:30,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:10:30,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:10:30,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-29 08:10:30,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:30,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 786 [2020-10-29 08:10:30,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:30,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:30,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:30,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-29 08:10:30,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:30,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-29 08:10:30,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:30,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:30,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:30,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-29 08:10:30,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:30,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:30,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:10:30,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:30,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:30,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:30,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-29 08:10:30,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:30,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 08:10:30,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:30,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:30,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:30,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:30,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:30,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:30,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1113 [2020-10-29 08:10:30,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:30,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:31,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:31,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-29 08:10:31,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:31,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 08:10:31,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:31,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:31,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:31,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-29 08:10:31,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:31,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:31,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1187 [2020-10-29 08:10:31,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:31,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:31,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:31,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-29 08:10:31,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:31,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-29 08:10:31,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:31,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:31,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:31,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-29 08:10:31,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:31,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:31,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-29 08:10:31,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:31,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:31,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:31,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-29 08:10:31,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:31,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-29 08:10:31,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:31,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:31,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:31,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-29 08:10:31,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:31,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:31,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:10:31,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:31,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:31,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:31,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 08:10:31,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:31,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:10:31,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:31,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:31,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:31,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:31,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:31,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:32,719 INFO L134 CoverageAnalysis]: Checked inductivity of 4808 backedges. 1013 proven. 404 refuted. 0 times theorem prover too weak. 3391 trivial. 0 not checked. [2020-10-29 08:10:32,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [45724876] [2020-10-29 08:10:32,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 08:10:32,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 08:10:32,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820533668] [2020-10-29 08:10:32,721 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 08:10:32,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 08:10:32,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 08:10:32,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 08:10:32,722 INFO L87 Difference]: Start difference. First operand 21486 states and 22817 transitions. Second operand 7 states. [2020-10-29 08:10:38,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 08:10:38,624 INFO L93 Difference]: Finished difference Result 46014 states and 48959 transitions. [2020-10-29 08:10:38,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 08:10:38,625 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1651 [2020-10-29 08:10:38,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 08:10:38,668 INFO L225 Difference]: With dead ends: 46014 [2020-10-29 08:10:38,668 INFO L226 Difference]: Without dead ends: 25210 [2020-10-29 08:10:38,693 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-29 08:10:38,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25210 states. [2020-10-29 08:10:39,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25210 to 25208. [2020-10-29 08:10:39,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25208 states. [2020-10-29 08:10:39,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25208 states to 25208 states and 26657 transitions. [2020-10-29 08:10:39,090 INFO L78 Accepts]: Start accepts. Automaton has 25208 states and 26657 transitions. Word has length 1651 [2020-10-29 08:10:39,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 08:10:39,091 INFO L481 AbstractCegarLoop]: Abstraction has 25208 states and 26657 transitions. [2020-10-29 08:10:39,091 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 08:10:39,091 INFO L276 IsEmpty]: Start isEmpty. Operand 25208 states and 26657 transitions. [2020-10-29 08:10:39,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1673 [2020-10-29 08:10:39,138 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 08:10:39,139 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 08:10:39,139 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-29 08:10:39,139 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 08:10:39,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 08:10:39,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1637633998, now seen corresponding path program 1 times [2020-10-29 08:10:39,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 08:10:39,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [216324999] [2020-10-29 08:10:39,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 08:10:39,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:39,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:39,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:40,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:40,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:44,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:44,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1700 [2020-10-29 08:10:44,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 08:10:44,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5096 [2020-10-29 08:10:44,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:44,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:44,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:10:44,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 943 [2020-10-29 08:10:44,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-29 08:10:44,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:44,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 08:10:44,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:44,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:44,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:44,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 08:10:44,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:44,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:10:44,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:44,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:44,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:44,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:44,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:44,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:44,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 08:10:44,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:44,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:44,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:44,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-29 08:10:44,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:44,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-29 08:10:44,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:44,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:44,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:44,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:44,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:44,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:44,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-29 08:10:44,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:44,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:44,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:44,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-29 08:10:44,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:44,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 08:10:44,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:44,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:44,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:44,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:44,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:44,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:44,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-29 08:10:44,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:44,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:44,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:44,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 08:10:44,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:44,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-29 08:10:44,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:44,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:44,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:44,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:44,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:44,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:44,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-29 08:10:44,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:44,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:44,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:44,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 08:10:44,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:44,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 08:10:44,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:44,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:44,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:44,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:44,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:44,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:44,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2020-10-29 08:10:44,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:45,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:45,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:45,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-29 08:10:45,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:45,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 337 [2020-10-29 08:10:45,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:45,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:45,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 08:10:45,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:45,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 257 [2020-10-29 08:10:45,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:45,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 933 [2020-10-29 08:10:45,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:45,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:45,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:45,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-29 08:10:45,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:45,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-10-29 08:10:45,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:45,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:45,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 08:10:45,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 08:10:45,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-29 08:10:45,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:45,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1206 [2020-10-29 08:10:45,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:45,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:45,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:45,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-29 08:10:45,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:45,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 08:10:45,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:45,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:45,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:45,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-29 08:10:45,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:45,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:45,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1318 [2020-10-29 08:10:45,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:45,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:46,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:46,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-29 08:10:46,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:46,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-29 08:10:46,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:46,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:46,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:46,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-29 08:10:46,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:46,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 08:10:46,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-29 08:10:46,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 08:10:46,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 08:10:46,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 08:10:46,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 08:10:46,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 08:10:46,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 08:10:46,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 08:10:46,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 08:10:46,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 08:10:46,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 08:10:46,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 08:10:46,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0